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Finding the Fourth Proportional to 366,740.49, 550,135.17 and 100,478.64

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Solution

The fourth proportional to 366,740.49, 550,135.17 and 100,478.64 is: 150,724.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,740.49 : 550,135.17 = 100,478.64 : x
  2. Step 2: Convert to fraction form
    366,740.49/550,135.17 = 100,478.64/x
  3. Step 3: Cross multiply
    366,740.49x = 550,135.17 × 100,478.64
  4. Step 4: Simplify right side
    366,740.49x = 55,276,833,697.77
  5. Step 5: Solve for x
    x = 55,276,833,697.77/366,740.49
  6. Step 6: Final answer
    x = 150,724.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.